Abstract
High resolution longslit spectra have been used to study the dynamical, physical, and chemical properties of the emission-line nebulae associated with seven cluster cooling flows. We find that the gas is much more centrally concentrated than implied by the radial accretion profile inferred from the X-ray data. The kinematics show little evidence for ordered large-scale shears or rotation, but are consistent with infall and/or turbulence. Gas pressures on scales of 1-10 kpc are about 10 times larger than X-ray pressures on larger scales and the radial pressure profiles vary significantly among the different nebulae. We present several lines of evidence favoring shock-heating over photoionization. In particular, we can conclusively rule out photoionization by a dilute nuclear continuum source. Several models for the heating of the nebulae are briefly explored. Two classes of nebulae with different chemical abundances have been identified. Finally, we stress the physical relationship between the nebulae and the coterminous nonthermal radio plasma.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Heckman, T.M., Baum, S.A., van Breugel, W., and McCarthy, P.J. 1988, in preparation.
Stewart, G.C., Canizares, C.R., Fabian, A.C., and Nulsen, P.E.J, 1984, Ap.J., 278, 536.
Johnstone, R.M., Fabian, A.C. and Nulsen, P.E.J. 1987, M.N.R.A.S., 224, 75.
Cowie, L.L., Fabian, A.C., and Nulsen, P.E.J. 1980, M.N.R.A.S.. 191, 399.
Fabian, A.C., Nulsen, P.E.J., and Canizares, C.R. 1984, Nature, 310, 733.
Hu, E.M., Cowie, L.L., and Wang, Z. 1985, Ap.J. Suppl., 59, 447.
Jones, C., and Forman, W. 1984, Ap.J., 276, 38.
Dfaz, A.I., Pagel, B.E.J., and Wilson, I.R.G. 1985, M.N.R.A.S., 212, 737.
Ferland, G.J. and Netzer, H. 1983, Ap.J.. 264, 105.
Kent, S.M. and Sargent, W.L.W. 1979, Ap.J., 230, 667.
Halpern, J.P. and Steiner, J.E. 1983, Ap.J. Lett., 269, L37.
Heckman, T.M. 1987, in Observational Evidence of Activity in Galaxies, IAU Symp. 121, ed. E.Ye. Khachikian et al.
van Breugel, W., Heckman, T.M., and Miley, G.K. 1984, Ap.J., 276 79.
Baum, S.A. and Heckman, T.M. 1986 in Radio Continuum Processes in Clusters of Galaxies, ed. C.P. 0’Dea and J.M. Uson (NRA0), p. 119.
Baum, S.A. 1987, Ph.D. Thesis, University of Maryland.
O’Dea, C.P. and Baum, S.A. 1986, in Radio Continuum Processes in Clusters of Galaxies, ed. C.P. 0Dea and J.M. Uson (NRA0), p. 141.
Feigelson, E.D., Wood, P.A.D., Schreier, E.J., Harris, D.E., and Reid, M.J. 1987, Ap.J., 312, 101.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1988 Kluwer Academic Publishers
About this chapter
Cite this chapter
Heckman, T.M., Baum, S.A., van Breugel, W., McCarthy, P.J. (1988). Detailed Spectroscopic Investigation of Emission-Line Nebulae Associated with Cooling Flows. In: Fabian, A.C. (eds) Cooling Flows in Clusters and Galaxies. NATO ASI Series, vol 229. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2953-1_29
Download citation
DOI: https://doi.org/10.1007/978-94-009-2953-1_29
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7828-3
Online ISBN: 978-94-009-2953-1
eBook Packages: Springer Book Archive